True Position Calculator

Find the true position deviation diameter.

X deviation

Y deviation

True position (mm dia.) 0.3606

Formula: TP = 2 × √(Δx² + Δy²)

Step-by-step with your numbers:

1. Values used:

2. X deviation = 0.1

3. Y deviation = 0.15

5. True position = 0.3606mm dia.

Did we solve your problem today?

True position measures the diameter of the error circle from a target location.

The math behind it

TP = 2 × √(X deviation² + Y deviation²). The result is a diameter — compare it with the tolerance on the print.

x 0.1, y 0.15 → TP 0.36 mm dia.

In tolerance?

Passes if the true position is ≤ the tolerance diameter.